Inventor

SAKURAI NOBORU

JP10 patents

⚠️ This page may combine multiple inventors who share the name “SAKURAI NOBORU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SEIKO EPSON CORP

2 patents

US7565099B2Jul 21, 2009

Developing device and image forming apparatus having a toner-particle bearing roller with a helical groove portion

SEIKO EPSON CORP17 citations83

US7555252B2Jun 30, 2009

Image forming apparatus that prevents conspicuous unevenness in image density

SEIKO EPSON CORP8 citations83

YAMADA YOICHI

2 patents

US8401443B2Mar 19, 2013

Toner-particle bearing roller, developing device, and image forming apparatus

YAMADA YOICHI0 citations51

US8086150B2Dec 27, 2011

Toner particle-bearing roller with projection portion, developing device having such toner particle-bearing roller, and image forming apparatus having such developing device

YAMADA YOICHI0 citations51

SAKURAI NOBORU

2 patents

US8405311B2Mar 26, 2013

Discharge lamp preventing devitrification, light source device, and projector

SAKURAI NOBORU0 citations45

US8087170B2Jan 3, 2012

Developing agent carrier manufacturing method, developing agent carrier, developing device and image forming apparatus

SAKURAI NOBORU0 citations32

SUZUKI JUNICHI

1 patent

US8192339B2Jun 5, 2012

Developing roller, manufacturing method thereof, developing apparatus and image forming apparatus

SUZUKI JUNICHI3 citations61

HITACHI LTD

1 patent

US5148334ASep 15, 1992

Phase synchronization circuit

HITACHI LTD2 citations59

MEIDENSHA ELECTRIC MFG CO LTD

1 patent

US12362115B2Jul 15, 2025

Vacuum interrupter

MEIDENSHA ELECTRIC MFG CO LTD0 citations49

NISHIYAMA YOSHIHIDE

1 patent

US8449343B2May 28, 2013

Discharge lamp having a heat resistant film and method for producing same

NISHIYAMA YOSHIHIDE0 citations48